Which describes the normal feline fundus?

• A. Holangiotic with 3 major venules that exit at the disc edge
• B. Dark, round optic nerve head that loses myelin as it enters the eye
• C. Tapetum is usually yellow in color with consistent size
• D. Pigment of the choroid is common

Answer: (A)

The key idea is the retinal vascular pattern in the normal feline fundus. Cats have a holangiotic retina, meaning that retinal vessels are present across the retina rather than confined to a small area. A distinguishing feature of this pattern is three major retinal venules that exit at the edge of the optic disc and run outward across the fundus. This arrangement is a reliable, observable hallmark of a normal feline fundus.

The other statements don’t align with feline anatomy: the optic nerve head isn’t typically described as dark and as having a myelin transition that’s specific to entering the eye; the tapetum in cats is usually greenish-yellow to blue-green rather than consistently yellow and its size isn’t a defining constant; and while choroidal pigment can be present, its presence alone doesn’t define the normal feline fundus.